Self-oiling bobbing gear



June 4, 1929.

H. CROWDER 1,715,536

SELF OILING BOBBING GEAR Filed July 8, 1927 I gwuzntoz \\\\\\|lllll///// Patented June 4, 1929.

unirsi) STATES" PATENT oFFicii..

i HARVEY CROWDER, OF ALABAMA CITY, ALABAMA, ASSIGrKNOR OF ONE-HALF "lO JAMES LEE BOTSFORD, OF ATTALLA, ALABAMA,

SELF-onlne BoBBrNG GEAR.

Application sied :ruiy "s,

self lubrication and provided with a lubri-v cant containing reservoir yformed as a part of the gear; and to provide in a gear of this io character, means for the automatic feed of a lubricant thereto.

Vith these and such other objects in view as will be apparent from the description toY those skilled in the art, the invention resides in the novel construction, combination and arrangement of parts hereinafter described and claimed, and illustrated in the accompanying drawings, wherein is shown one practical and physical embodiment of thev principles of the v y part thereof, rand various Vdesired modifica-- tions of detail may be made as will fall with in invention. y

Figure 1 is an elevation, partly in section, of a gear constructed and mounted in accordance with the invention.

Figure 2 is' an elevation of a bobbing gear assembly illustrating the gear asin service.

Figure 3 is a. horizontal section on the line 3*?) of Figure 1.

In detail the invention comprises a lubricant reservoir in the form of a hollow cylinder 5 having a closedupper end or top 6 and a hub sleeve 8 of a bobbing gear 9. As in the 'usual construction of such gears the pinion 9 through its hub sleeve 8 is rotatablymount- 'ed in a vertical position on an arbor 10 forming an element of the gear assembly, which general assembly as shown in Figure 2 forms no part of the present invention and is there# closed lower end orfbottom 7 carried on the 1927. serial No. aoaaia.

is in concentric spaced relation from the hub p sleeve 8 and the chamber thus formed is 45 y filled with a'brous material packing 12 havingl absorptive qualities for holding oil'or other liquid lubricant fed into thechamber of the reservoir` through feed apertures 13 Ain the top 6. Adjacent the bottom of the 50.VV 1 reservoir chamber the hub sleeveS is formed n 'with radial bores 14 extending therethrough by means of which the lubricant from the chamber flows by gravity into contact with the arbor 10, thus lubricating the bearing of 5,5Y

the hub sleeve on' the arbor and bygravity feed, `the bearing of the-pinion9 on the strut 11.

rl/Vhile inv this embodiment'the cylinder 5A is shown as a 'separate element secured on th'e- 60 hub sleeve 8, it is within the province of the invention that it may be cast as an integral n' with, ahollow cylindersurrounding said sleeve and rigidly secured thereto with the walls` of said cylinder in concentricv spaced relation from said sleeve, saideylinder' beingclosed' at its top and jbottom, alubricant .holding Y., 1

material disposed lin said cylinder, said sleeve. f being provided with radial conduits disposed slightly above the bottomv of said cylinder, and said cylinderv having its top-provided y `withperforations to receive a lubricant therethrough, said sleeve conduits being" formed for gravitational feed of lubricant from the material in said cylinder to the inner face of y said sleeve above said hub. 'i

In testimony whereof I aliixmy signature.

HARVEY CROWDER. 

